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  <div class="section" id="features-requirements-and-limitations">
<h1>Features, requirements, and limitations<a class="headerlink" href="#features-requirements-and-limitations" title="Permalink to this headline">¶</a></h1>
<ul class="simple">
<li><p>Highly optimized OpenCL and CUDA cores for maximum ethash mining speed</p></li>
<li><p>Lowest developer fee of 0.65% (35 seconds defvee mining per each 90 minutes)</p></li>
<li><p>Dual mining ethash/Blake2s with lowest devfee of 0.9% (35 seconds defvee mining per each 65 minutes)</p></li>
<li><p>Advanced statistics: actual difficulty of each share as well as effective hashrate at the pool</p></li>
<li><p>Supports AMD RX6800, RX6900, RX5500, RX5600, RX5700, Radeon VII, Vega, 590/580/570/480/470, 460/560, Fury, 390/290 and older AMD GPUs with enough VRAM</p></li>
<li><p>Supports Nvidia 30x0, 20x0, 16x0, 10x0 and 9x0 series as well as older cards with enough VRAM</p></li>
<li><p>DAG file generation in the GPU for faster start-up and DAG epoch switches</p></li>
<li><p>Supports all ethash mining pools and stratum protocols, including solo mining via HTTP</p></li>
<li><p>Supports secure pool connections (e.g. <code class="docutils literal notranslate"><span class="pre">ssl://eu1.ethermine.org:5555)</span></code> to prevent IP hijacking attacks</p></li>
<li><p>Detailed statistics, including the individual cards hashrate, shares, temperature, fan speed, clocks, voltages, etc.</p></li>
<li><p>Unlimited number of fail-over pools in <code class="docutils literal notranslate"><span class="pre">epools.txt</span></code> configuration file (or two on the command line)</p></li>
<li><p>GPU tuning for the AMD GPUs to achieve maximum performance with your rig</p></li>
<li><p>Supports devfee on alternative ethash currencies like ETC, EXP, Music, UBQ, Pirl, Ellaism,
Metaverse ETP, WhaleCoin, and Victorium. This avoids any additional loses and instabilities
becuase of additional DAG generation, and also allows you to use older cards with small VRAM
or low hashate on current DAG epochs (e.g. GTX970, 280X).</p></li>
<li><p>Supports the Ubqhash algorithm for the UBQ coin. Please note that you must
add <code class="docutils literal notranslate"><span class="pre">-coin</span> <span class="pre">ubq</span></code> to your command line (or <code class="docutils literal notranslate"><span class="pre">COIN:</span> <span class="pre">ubq</span></code> to your <code class="docutils literal notranslate"><span class="pre">epools.txt</span> <span class="pre">file</span></code>) in order to mine UBQ</p></li>
<li><p>Supports the ProgPOW algorithm for the Bitcoin Interest (BCI) coin mining. Please note that you must
add <code class="docutils literal notranslate"><span class="pre">-coin</span> <span class="pre">bci</span></code> to your command line (or <code class="docutils literal notranslate"><span class="pre">COIN:</span> <span class="pre">bci</span></code> to your <code class="docutils literal notranslate"><span class="pre">epools.txt</span></code> file) in order to mine BCI</p></li>
<li><p>Full compatibility with the industry standard Claymore’s Dual Ethereum miner, including most of
command-line options, configuration files, and remote monitoring and management.</p></li>
<li><p>More features coming soon!</p></li>
</ul>
<p>PhoenixMiner requires Windows x64 (Windows 7, Windows 10, etc.), or Linux x64 (tested on Ubuntu LTS
and Debian stable).</p>
<p>PhoenixMiner also supports dual mining (simultaneous mining of ethash/ubqhash and other cryptocoin algorithm).
Currently we support only Blake2s as secondary algorithm for dual mining. Note that when using dual mining,
there is no devfee on the secondary coin but the devfee on the main coin is increased to 0.9%. In other words,
if you are using the dual mining feature PhoenixMiner will mine for us for 35 seconds every 65 minutes.</p>
<p>While the miner is running, you can use some interactive commands. Press the key <code class="docutils literal notranslate"><span class="pre">h</span></code> while the
miner’s console window has the keyboard focus to see the list of the available commands. The
interactive commands are also listed at the end of the following section.</p>
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